A highly sensitive sensor based on a computer-designed magnetic molecularly imprinted membrane for the determination of acetaminophen
作者：
Su, Changlin;Li, Zhiyang;Zhang, Di;Wang, Zhimei;Zhou, Xin;...
期刊：
Biosensors and Bioelectronics ,2020年148:111819 ISSN：0956-5663
通讯作者：
Xiao, Xilin
作者机构：
[Su, Changlin; Wang, Zhimei; Xiao, Xilin; Zhou, Xin; Liao, Lifu; Li, Zhiyang; Zhang, Di] Univ South China, Hunan Prov Key Lab Design & Applicat Actinide Com, Sch Chem & Chem Engn, Hengyang City 421001, Hunan, Peoples R China.;[Xiao, Xilin] Univ South China, Sch Resource & Environm & Safety Engn, Hengyang City 421001, Hunan, Peoples R China.;[Xiao, Xilin] Hutton Univ, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China.
通讯机构：
[Xiao, Xilin] U;Univ South China, Hunan Prov Key Lab Design & Applicat Actinide Com, Sch Chem & Chem Engn, Hengyang City 421001, Hunan, Peoples R China.
关键词：
Acetaminophen;Carbon paste electrode;Electrochemical sensor;Magnetic molecularly imprinted membrane
摘要：
In this paper, a sensor based on a magnetic surface molecularly imprinted membrane (MMIP) was prepared for the highly sensitive and selective determination of acetaminophen (AP). Before the experiment, the appropriate functional monomers and solvents required for the polymer were screened, and the molecular electrostatic potentials (MEPs) were calculated by the DFT/B3LYP/6-31 + G method. MMIP with high recognition of AP was synthesized based on Fe3O4@SiO2nanoparticles (NPs) with excellent core-shell structure. Next, a carbon paste electrode (CPE) was filled with a piece of neodymium-iron-boron magnet to make magnetic electrode (MCPE), and MMIP/MCPE sensor was obtained by attaching a printed polymer to the surface of the electrode under the strong magnetic. Due to the stable molecular structure of the electrode surface, the sensor is highly effective and accurate for detection of AP using DPV. The DPV response of the sensor exhibited a linear dependence on the concentration of AP from 6 × 10−8 to 5 × 10−5 mol L−1 and 5 × 10−5 to 2 × 10−4 mol L−1, with a detection limit based on the lower linear range of 1.73 × 10−8 mol L−1(S/N = 3). When used for determination of AP in actual samples, the recovery of the sensor to the sample was 95.80–103.76%, and the RSD was 0.78%–3.05%. © 2019 Elsevier B.V.
语种：
英文
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Synthesis of bipolar tetradentate ligand and determination of fructose 1,6-diphosphate by resonance light scattering of its supramolecular polymer
作者：
Li, Zhiyang;Xiao, Xilin* ;Su, Changlin;Hu, Nan;Nie, Changming;...
期刊：
Journal of Radioanalytical and Nuclear Chemistry ,2020年323(1):431-438 ISSN：0236-5731
通讯作者：
Liao, Lifu;Xiao, Xilin;Liu, Yong
作者机构：
[Su, Changlin; Liao, Lifu; Nie, Changming; Li, Zhiyang; Zhang, Di] Univ South China, Sch Chem & Chem Engn, Hunan Prov Key Lab Design & Applicat Actinide Com, Hengyang City 421001, Hunan, Peoples R China.;[Wang, Zhimei; Xiao, Xilin; Hu, Nan; Xiao, XL; Liu, Yong] Univ South China, Hunan Prov Engn Res Ctr Radioact Control Technol, Sch Resource & Environm & Safety Engn, Hengyang City 421001, Hunan, Peoples R China.;[Wang, Zhimei; Xiao, Xilin; Hu, Nan; Xiao, XL; Liu, Yong] Univ South China, Hunan Prov Engn Technol Res Ctr Uranium Tailings, Hengyang City 421001, Hunan, Peoples R China.;[Xiao, Xilin] Hunan Univ, State Key Lab Chemo & Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China.
通讯机构：
[Liao, Lifu; Xiao, XL; Liu, Y] U;[Xiao, Xilin] H;Univ South China, Sch Chem & Chem Engn, Hunan Prov Key Lab Design & Applicat Actinide Com, Hengyang City 421001, Hunan, Peoples R China.;Univ South China, Hunan Prov Engn Res Ctr Radioact Control Technol, Sch Resource & Environm & Safety Engn, Hengyang City 421001, Hunan, Peoples R China.;Univ South China, Hunan Prov Engn Technol Res Ctr Uranium Tailings, Hengyang City 421001, Hunan, Peoples R China.
关键词：
Fructose 1,6-diphosphate;Bipolar tetradentate schiff base;Supramolecular polymer;Uranyl;Resonance light scattering
摘要：
In this paper, a novel method was established for determination of fructose 1,6-diphosphate (F-1,6-BP) based on resonance light scattering (RLS), and a type of bipolar tetradentate schiff base H4L was synthesized. The study showed that under the optimization condition with the ligand concentration of 5 nmol mL(-1), pH 6.5, the reaction temperature of 25 degrees C, the reaction time of 30 min, RLS intensity had good linearity with the concentration of F-1,6-BP within the range of 0.4-5.0 nmol mL(-1), the limit of detection was 0.16 nmol mL(-1) and the relative standard deviation (RSD) was 1.83%. In vitro feasibility study, four groups of medical injections and two groups of human urine were analyzed, the RSD of six parallel experiments was approximately 2%, and the recovery value changed from 98.0 to 102.5%. As shown herein, this method has high sensitivity, good precision and recovery.
语种：
英文
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Insight into Coordination of Uranyl Ions with N,N′-bis(2-five-membered heterocyclidene)-1,8-anthradiamines
作者：
Long, Li-yu;Tao, Peng;Li, Tian-liang;Wu, Si;Kong, Xiang-he;...
期刊：
Applied Organometallic Chemistry ,2019年33(6):e4931- ISSN：0268-2605
通讯作者：
Nie, Chang-ming
作者机构：
[Liao, Li-fu; Wu, Si; Long, Li-yu; Li, Tian-liang; Xiao, Xi-lin; Kong, Xiang-he; Tao, Peng; Nie, Chang-ming] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.;[Liao, Li-fu; Long, Li-yu; Xiao, Xi-lin; Tao, Peng; Nie, Chang-ming] Key Lab Hunan Prov Design & Applicat Nat Actinide, Hengyang 421001, Peoples R China.
通讯机构：
[Nie, Chang-ming] U;Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
关键词：
coordination;nitrogen family nonmetal elements;oxygen family nonmetal elements;uranyl;uranyl-BFHADAs
摘要：
To find new adsorbents for uranyl ions, the density functional theory (DFT) was adopted to design a series of new ligands containing an anthracene and two five-membered heterocycles with nitrogen family nonmetal elements (N, P, As) or oxygen family nonmetal elements (O, S, Se, Te), for example, ligands N,N′-bis(2-five-membered heterocyclidene)-1,8-anthradiamines (BFHADAs). Then the uranyl ions were coordinated with BFHADAs to generate five new coordination complexes (Uranyl-BFHADAs) with heteroatoms N, S, As, Se and Te, respectively. The five-membered heterocyclic rings of Uranyl-BFHADA with oxygen atoms were broken under the structural optimization and Uranyl-BFHADA with heterocyclic atoms P was not obtained. Several structures and property parameters of the ligands BFHADAs (containing heteroatoms N, S, As, Se and Te) and their uranyl complexes Uranyl-BFHADAs were theoretically investigated and analyzed. The results showed that uranyl ions could form stable coordination complexes with these five BFHADAs. The formed bonds between uranyl ions and the heteroatoms in BFHADAs were coordination bonds rather than other types of bonds. These results could provide insightful information and theoretical guidance for the coordination of uranyl with the atoms N, S, Se, As and Te in other ligands. © 2019 John Wiley & Sons, Ltd.
语种：
英文
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A novel sensor based on multi-walled carbon nanotubes and boron-doped double-layer molecularly imprinted membrane for the analysis of SCZ in pharmaceutical and biological samples
作者：
Peng, Pengcheng;Liao, Lifu;Yu, Zhaohui;Jiang, Min;Deng, Jian;...
期刊：
International Journal of Environmental Analytical Chemistry ,2019年99(15):1495-1514 ISSN：0306-7319
通讯作者：
Xiao, Xilin
作者机构：
[Peng, Pengcheng; Liao, Lifu; Jiang, Min; Deng, Jian] Univ South China, Sch Chem & Chem Engn, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang City, Peoples R China;[Yu, Zhaohui; Xiao, Xilin] Univ South China, Sch Resource & Environm & Safety Engn, Hengyang City, Peoples R China
通讯机构：
[Xiao, Xilin] U;Univ South China, Sch Resource & Environm & Safety Engn, Hengyang City, Peoples R China.
关键词：
Secnidazole;multi-wall carbon nanotubes;electrochemical sensor;differential pulse voltammetry;Molecularly imprinted polymer
摘要：
A molecularly imprinted electrochemical sensor for the rapid detection of the anti-parasitic drug Secnidazole (SCZ) is reported. In this work, the build electrochemical sensor was based on a carbon paste electrode (CPE) modified with multi-wall carbon nanotubes (MWCNTs) and boron-embedded duplex molecularly imprinted composite membranes (B-DMICMs), that significantly increased the efficiency of the sensor for the detection of template molecule SCZ. Density functional theory (DFT) was employed to study the interactions between the template and monomers to select appropriate functional monomers for rational design of the B-DMICMs.The optimal experimental conditions were optimised for the factors affecting the performance of the sensor. Under the optimal conditions, the reduction peak currents of SCZ by differential pulse voltammetry increased linearly with SCZ concentration in the range from 3.0 x 10(-4) to 1.0 x 1.0(-6) mol L-1 and 1.0 x 1.0(-6) to 1.91 x 10(-8) mol L-1 with a detection limit of 1.72 x 10(-8) mol L-1 for secnidazole, which is significantly lower than those in the currently used methods and in previous reports. This method offers low cost, sensitive and effective determination of SCZ and can potentially be used for detection of SCZ in pharmaceutical and biological samples with good precision and accuracy.
语种：
英文
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A europium (III) complex-based surface fluorescence sensor for the determination of uranium (VI)
作者：
Jiang, Min;Xiao, Xilin* ;He, Bo;Liu, Yong;Hu, Nan;...
期刊：
Journal of Radioanalytical and Nuclear Chemistry ,2019年321(1):161-167 ISSN：0236-5731
通讯作者：
Xiao, Xilin;Liao, Lifu
作者机构：
[Xiao, XL; Liao, Lifu; Su, Changlin; Jiang, Min; Xiao, Xilin; Li, Zhiyang; He, Bo] Univ South China, Sch Chem & Chem Engn, Hunan Prov Key Lab Design & Applicat Actinide Com, Hengyang 421001, Hunan, Peoples R China.;[Xiao, Xilin; Hu, Nan; Liu, Yong] Univ South China, Sch Resource & Environm & Safety Engn, Hunan Prov Key Lab Green Dev Technol Extremely Lo, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Xiao, XL; Liao, LF; Xiao, Xilin] U;Univ South China, Sch Chem & Chem Engn, Hunan Prov Key Lab Design & Applicat Actinide Com, Hengyang 421001, Hunan, Peoples R China.;Univ South China, Sch Resource & Environm & Safety Engn, Hunan Prov Key Lab Green Dev Technol Extremely Lo, Hengyang 421001, Hunan, Peoples R China.
关键词：
Uranium;Surface fluorescence;Sensor;Europium (III) complex;Salophen
摘要：
In this paper, we report a method for the determination of uranium (VI) based on the using of a surface fluorescence sensor containing a europium (III) complex. The sensor was prepared by immobilizing the Eu(III)-salophen complex on a glass slide surface through Si–O covalent bonds. The sensor can generate strong surface fluorescence as a result of the Cation–Cation Interaction between U (VI) and Eu(III). We used this property to design a surface fluorescence sensing method to detect U (VI). Under suitable conditions, the linear range was 0.02–5 nmol mL−1 and the detection limit was 8 × 10−3 nmol mL−1. This method was successfully used in determine U (VI) in real samples with a recovery rate between 99.5 and 103.5%. © 2019, Akadémiai Kiadó, Budapest, Hungary.
语种：
英文
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基于Uranyl-Salophen-SDS体系荧光光谱法检测铀
作者：
苏昌霖;廖力夫;郦志阳;王志梅;张迪;...
期刊：
南华大学学报(自然科学版) ,2019年33(4):67-72,78 ISSN：1673-0062
作者机构：
南华大学 化学化工学院,湖南 衡阳,421001
关键词：
铀酰;十二烷基硫酸钠;增敏;荧光强度
摘要：
铀是一种重要的自然资源,在多个领域都有广泛的用途,所以检测铀也变得越来越有意义.建立了一种操作简单,价格低廉,灵敏度高的检测方法,首先将Salo-phen与铀酰结合成Uranyl-Salophen配合物,接着采用十二烷基硫酸钠(SDS)表面活性剂将配合物包裹,从而达到增敏检测U(VI)的目的.优化了时间、温度、SDS剂量、pH条件,在最优条件下荧光强度与铀的浓度范围在0.005～3.5 mol/mL下呈现良好的线性关系,在实际样品中检测铀的回收率在96％ ～103％.
语种：
中文
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Theoretical investigation into the coordination of R-/S-asymmetric uranyl–salophens containing six-membered ring lactam with cis−/trans-cyclohexylamines
作者：
Yang, Liang-Liang;Kong, Xiang-He;Wu, Zhi-Lin;Lin, Ying-Wu;Liao, Li-Fu;...
期刊：
Applied Organometallic Chemistry ,2018年32(7):e4387- ISSN：0268-2605
通讯作者：
Nie, Chang-Ming
作者机构：
[Liao, Li-Fu; Nie, Chang-Ming; Wu, Zhi-Lin; Yang, Liang-Liang; Kong, Xiang-He; Lin, Ying-Wu] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
通讯机构：
[Nie, Chang-Ming] U;Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Peoples R China.
关键词：
coordination selectivity;density functional theory;molecular recognition;R-/S-asymmetric uranyl–salophens
摘要：
A six-membered ring lactam derivative was introduced in a parallel manner into uranyl–salophens with R/S configuration (R-/S-AUSRLs), which were used as receptors to coordinate with guests of cis−/trans-methylcyclohexylamines (cis−/trans-MCHAs). Using density functional theory calculations at the B3LYP/6-311G** level and RECP, an insight into the coordination complexes of the R-/S-AUSRLs with cis−/trans-MCHAs was obtained. The results showed that the U atoms of receptors could coordinate with the N atoms of four kinds of cis−/trans-1,2 or − 1,4 guests, but the two kinds of cis−/trans-1,3 guests could not be converged by the same method in the process of structural optimization due to steric hindrance, and thus the cis−/trans-1,3 guests could not be coordinated with the R-/S-AUSRLs. The mode of coordination of the R-/S-AUSRLs with the guests displayed a significant difference. And the change of R-AUSRL coordination ability to the cis−/trans-MCHAs was very large, but that of S-AUSRL was small. Overall, the stability of the R-series coordination complexes was higher than that of the corresponding S-series coordination complexes, and the R-AUSRL receptor had better coordination selectivity and higher molecular recognition to the cis−/trans-MCHA guests than the S-AUSRL receptor. However, the coordination ability of S-AUSRL with the cis−/trans-MCHAs was stronger than that of R-AUSRL. It was expected that these results could provide insightful information and theoretical guidance for understanding the molecular recognition of R-/S-AUSRLs for cis−/trans-type cyclohexylamine derivatives.<br/> Copyright ©2018 John Wiley & Sons, Ltd.
语种：
英文
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金属水凝胶T-Ac-Zn的制备与表征
作者：
王晓娟;魏传晚;肖锡林;廖力夫
期刊：
南华大学学报(自然科学版) ,2018年32(1):92-96 ISSN：1673-0062
作者机构：
南华大学 化学化工学院,湖南 衡阳,421001;[肖锡林; 魏传晚; 廖力夫; 王晓娟] 南华大学
关键词：
T-Ac-Zn金属水凝胶;制备;表征
摘要：
通过简单的实验方法合成了凝胶因子T-Ac,并利用核磁84质3谱1等9实6验3方0法确证其结构.一定条件下,凝胶因子T-Ac可以和Zn2+自组装形成白色不透明的金属水凝胶T-Ac-Zn,该凝胶具有良好的刺激响应性.为了探索成胶机理,通过各种实验方法对金属水凝胶T-Ac-Zn进行了表征.
语种：
中文
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Study on Antitumor Activity of Isoflavene-Thiosemicarbazone Hybrids and Their Molecular Structure Characterizations
作者：
Qi-qi CHEN;Chang-ming NIE;Ying-wu LIN;Zhi-lin WU;Li-fu LIAO
期刊：
,2018年:540-547 ISSN：2475-8841
作者机构：
[Qi-qi CHEN; Chang-ming NIE; Ying-wu LIN; Zhi-lin WU; Li-fu LIAO] School of Chemistry and Chemical Engineering,University of South China
会议名称：
2018 International Conference on Modeling, Simulation and Optimization(MSO 2018)
会议时间：
2018-01-21
会议地点：
中国广东深圳
摘要：
The insight into antitumor activity of isoflavene-thiosemicarbazone hybrids and their molecular structure characterizations were studied by using density functional theory(DFT) method at the level of
语种：
英文
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A novel resonance fluorescence chemosensor based on the formation of heterobinuclear complex with a di-tetradentate macrocyclic ligand and europium (III) for the determination of uranium (VI)
作者：
Wang, Jiao;Xiao, Xilin* ;He, Bo;Jiang, Min;Nie, Changming;...
期刊：
Sensors and Actuators B-Chemical ,2018年262:359-364 ISSN：0925-4005
通讯作者：
Xiao, Xilin;Liao, Lifu
作者机构：
[Xiao, XL; Liao, Lifu; Wang, Jiao; Xiao, Xilin; Jiang, Min; Nie, Changming; Lin, Ying-Wu; He, Bo] Univ South China, Sch Chem & Chem Engn, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang City 421001, Hunan, Peoples R China.
通讯机构：
[Xiao, XL; Liao, LF] U;Univ South China, Sch Chem & Chem Engn, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang City 421001, Hunan, Peoples R China.
关键词：
Uranium;Resonance fluorescence chemosensor;Heterobinuclear complex;Di-tetradentate macrocyclic ligand;Europium
摘要：
In this paper, we synthesized and characterized a di-tetradentate macrocyclic ligand as a novel resonance fluorescence probe for the determination of uranium. The ligand contains two tetradentate ligand moieties and can chelate two cations to form binuclear complex. We found that when the ligand only chelates a uranyl ion or europium (III) ion, the formed complex can only produce weak resonance fluorescence. When the ligand chelates simultaneously uranyl and europium (III) to form heterobinuclear complex, the formed complex can produce strong resonance fluorescence due to the cation-cation interaction between uranyl and europium (III). Based on this finding, we established a resonance fluorescence chemosensor for the determination of uranium (VI) by utilizing the formation of the heterobinuclear complex. Under optimal conditions, the linear range for the determination of uranium (VI) is 0.008-1.2 nmol mL(-1) with a detection limit of 0.002 nmol mL(-1). The method has been applied to determine uranium (VI) in environmental water samples with the recoveries between 95.7% and 103.6%. (C) 2018 Elsevier B.V. All rights reserved.
语种：
英文
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Preparation and application of a carbon paste electrode modified with multi-walled carbon nanotubes and boron-embedded molecularly imprinted composite membranes
作者：
Wang, Hongjuan;Qian, Duo;Xiao, Xilin* ;Deng, Chunyan;Liao, Lifu;...
期刊：
Bioelectrochemistry ,2018年121:115-124 ISSN：1567-5394
通讯作者：
Xiao, Xilin;Deng, Jian
作者机构：
[Xiao, XL; Deng, Jian; Wang, Hongjuan; Xiao, Xilin; Qian, Duo; Liao, Lifu; Lin, Ying-Wu] Univ South China, Sch Chem & Chem Engn, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Hunan, Peoples R China.;[Deng, Chunyan] Cent S Univ, Coll Chem & Chem Engn, Key Lab Resources Chem Nonferrous Met, Changsha 410083, Hunan, Peoples R China.
通讯机构：
[Xiao, XL; Deng, J] U;Univ South China, Sch Chem & Chem Engn, Key Discipline Lab Natl Def Biotechnol Uranium Mi, Hengyang 421001, Hunan, Peoples R China.
关键词：
Tinidazole;Density functional theory;Multi-walled carbon nanotubes;Boron-embedded molecular imprinting composite membrane;Electrochemical sensor
摘要：
An innovative electrochemical sensor was fabricated for the sensitive and selective determination of tinidazole (TNZ), based on a carbon paste electrode (CPE) modified with multi-walled carbon nanotubes (MWCNTs) and boron-embedded molecularly imprinted composite membranes (B-MICMs). Density functional theory (DFT) calculations were carried out to investigate the utility of template-monomer interactions to screen appropriate monomers for the rational design of B-MICMs. The distinct synergic effect of MWCNTs and B-MICMs was evidenced by the positive shift of the reduction peak potential of TNZ at B-MICMs/MWCNTs modified CPE (B-MICMs/MWCNTs/CPE) by about 200 mV, and the 12-fold amplification of the peak current, compared with a bare carbon paste electrode (CPE). Moreover, the coordinate interactions between trisubstituted boron atoms embedded in B-MICMs matrix and nitrogen atoms of TNZ endow the sensor with advanced affinity and specific directionality. Thereafter, a highly sensitive electrochemical analytical method for TNZ was established by different pulse voltammetry (DPV) at B-MICMs/MWCNTs/CPE with a lower detection limit (1.25 × 10−12 mol L−1) (S/N = 3). The practical application of the sensor was demonstrated by determining TNZ in pharmaceutical and biological samples with good precision (RSD 1.36% to 3.85%) and acceptable recoveries (82.40%–104.0%). © 2017 Elsevier B.V.
语种：
英文
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双核铀酰配合物二级散射法检测ATP
作者：
肖锡林;蒋敏;许丽;王娇;廖力夫;...
期刊：
南华大学学报(自然科学版) ,2018年32(2):7-12 ISSN：1673-0062
作者机构：
南华大学 化学化工学院,湖南 衡阳,421001;[王娇; 何淑倩; 许丽; 肖锡林; 蒋敏; 廖力夫] 南华大学
关键词：
双核铀酰配合物;三磷酸腺苷;二级散射
摘要：
建立了一种利用二级散射法不经分离直接测定溶液中ATP的新方法.利用间苯二甲醛与吡咯反应制备一种新型双极双齿配体(isophthalaldehyde-tetrapyrrole,IP TP),该配体与铀酰配位形成双核铀酰配合物,双核铀酰配合物与ATP络合形成双核铀酰配合物-ATP,研究双核铀酰配合物-ATP体系的光谱特征,影响因素和最佳反应条件.在最佳条件下二级散射强度与ATP的浓度的线性范围是2.5～500 nmol/L,检出限为0.75 nmol/L,此方法已成功用于待测样品中ATP的测定.
语种：
中文
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逆向案例教学法在普通化学教学中的应用及体会
作者：
肖锡林;廖力夫;林英武;王宏青;聂长明;...
期刊：
大学化学 ,2017年32(1):31-35 ISSN：1000-8438
作者机构：
南华大学化学化工学院,湖南 衡阳,421001;[谭春红; 聂长明; 王宏青; 赵玉宝; 樊华; 林英武; 肖锡林; 廖力夫; 周昕] 南华大学
关键词：
逆向案例教学;普通化学;教学方法
摘要：
分析了普通化学课程目前在教学环节所存在的问题，并针对这些问题提出了逆向案例教学法的改革举措。
语种：
中文
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Determination of thorium (IV) using isophthalaldehyde-tetrapyrrole as probe by resonance light scattering, second-order scattering and frequency-doubling scattering spectra
作者：
Wang, Jiao;Xue, Jinhua;Xiao, Xilin* ;Xu, Li;Jiang, Min;...
期刊：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY ,2017年187:104-109 ISSN：1386-1425
通讯作者：
Xiao, Xilin;Liao, Lifu
作者机构：
[Xu, Li; Xiao, XL; Liao, Lifu; Wang, Jiao; Xiao, Xilin; Jiang, Min; Xue, Jinhua; Peng, Pengcheng] Univ South China, Sch Chem & Chem Engn, Sch Publ Hlth, Hengyang City 421001, Hunan, Peoples R China.
通讯机构：
[Xiao, XL; Liao, LF] U;Univ South China, Sch Chem & Chem Engn, Sch Publ Hlth, Hengyang City 421001, Hunan, Peoples R China.
关键词：
Thorium;Isophthalaldehyde-tetrapyrrole;Resonance light scattering;Second-order scattering;Frequency-doubling scattering
摘要：
The coordination reaction of thorium (IV) with a ditopic bidentate ligand to form supramolecular polymer was studied by resonance light scattering (RLS) spectra, second-order scattering (SOS) spectra and frequency-doubling scattering (FDS) spectra, respectively. The ditopic bidentate ligand is isophthalaldehyde-tetrapyrrole (IPTP). It was synthesized through a condensation reaction of isophthalaldehyde with pyrrole. The formation of supramolecular polymer results in remarkable intensity enhancements of the three light scattering signals. The maximum scattering wavelengths of RLS, FDS and SOS were 290, 568 and 340 nm, respectively. The reaction was used to establish new light scattering methods for the determination of thorium (IV) by using IPTP as probe. Under optimum conditions, the intensity enhancements of RLS, SOS and FDS were directly proportional to the concentration of thorium (IV) in the ranges of 0.01 to 1.2 mu g mL(-1), 0.05 to 1.2 mu g mL(-1) and 0.05 to 1.2 mu g mL(-1), respectively. The detection limits were 0.003 mu g mL(-1), 0.012 mu g mL(-1) and 0.021 mu g mL(-1), respectively. The methods were suitable for analyzing thorium (IV) in actual samples. The results show acceptable recoveries and precision compared with a reference method. (C) 2017 Elsevier B.V. All rights reserved.
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A highly sensitive and selective sensor based on a graphene-coated carbon paste electrode modified with a computationally designed boron-embedded duplex molecularly imprinted hybrid membrane for the sensing of lamotrigine
作者：
Wang, Hongjuan;Qian, Duo;Xiao, Xilin* ;Gao, Shuqin;Cheng, Jianlin;...
期刊：
Biosensors and Bioelectronics ,2017年94:663-670 ISSN：0956-5663
通讯作者：
Xiao, Xilin;Deng, Jian
作者机构：
[Xiao, XL; Deng, Jian; Wang, Hongjuan; Xiao, Xilin; Qian, Duo; Liao, Lifu; He, Bo] Univ South China, Coll Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.;[Gao, Shuqin] Univ South China, Coll Med, Hengyang 421001, Hunan, Peoples R China.;[Cheng, Jianlin] Univ South China, Coll Publ Hlth, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Xiao, XL; Deng, J] U;Univ South China, Coll Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
关键词：
Computational design;Duplex molecularly imprinted hybrid membrane;Electrochemical sensor;Lamotrigine
摘要：
An innovative electrochemical sensor, based on a carbon paste electrode (CPE) modified with graphene (GR) and a boron-embedded duplex molecularly imprinted hybrid membrane (B-DMIHM), was fabricated for the highly sensitive and selective determination of lamotrigine (LMT). Density functional theory (DFT) was employed to study the interactions between the template and monomers to screen appropriate functional monomers for rational design of the B-DMIHM. The distinct synergic effect of GR and B-DMIHM was evidenced by the positive shift of the reduction peak potential of LMT at B-DMIHM/GR modified CPE (B-DMIHM/GR/CPE) by about 300 mV, and the 13-fold amplification of the peak current, compared to a bare carbon paste electrode (CPE). The electrochemical reduction mechanism of lamotrigine was investigated by different voltammetric techniques. It was illustrated that square wave voltammetry (SWV) was more sensitive than different pulse voltammetry (DPV) for the quantitative analysis of LMT. Thereafter, a highly sensitive electroanalytical method for LMT was established by SWV at B-DMIHM/GR/CPE with a good linear relationship from 5.0×10<sup>−8</sup>to 5.0×10<sup>−5</sup>and 5.0×10<sup>−5</sup>to 3.0×10<sup>−4</sup> mol L<sup>−1</sup>with a lower detection limit (1.52×10<sup>−9</sup> mol L<sup>−1</sup>) based on the lower linear range(S/N=3). The practical application of the sensor was demonstrated by determining the concentration of LMT in pharmaceutical and biological samples with good precision (RSD 1.04–4.41%) and acceptable recoveries (92.40–107.0%). ©2017 Elsevier B.V.
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英文
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Enantioselective determination of S-ornidazole by using carbon paste electrode modified with boron-embedded conductive copolymer-polysiloxane-based molecularly imprinted hybrid film
作者：
Wang, Hongjuan;Qian, Duo;Xiao, Xilin* ;He, Bo;Gao, Shuqin;...
期刊：
Electrochimica Acta ,2017年246:338-347 ISSN：0013-4686
通讯作者：
Xiao, Xilin;Deng, Jian
作者机构：
[Xiao, XL; Deng, Jian; Wang, Hongjuan; Xiao, Xilin; Qian, Duo; Liao, Lifu; He, Bo] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.;[Gao, Shuqin] Univ South China, Sch Med, Hengyang 421001, Hunan, Peoples R China.;[Shi, Han] Bur Anim Husb & Fisheries, Shaodong 422800, Hunan, Peoples R China.
通讯机构：
[Xiao, XL; Deng, J] U;Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
关键词：
S-ornidazole;Enantioselective determination;Molecularly imprinted hybrid film;Electrochemical sensor
摘要：
Highly selective determination of enantiomers by electrochemical sensors with simple recognition elements is of great interest in pharmaceutics, biochemistry and medical fields. The present work developed an innovative electrochemical sensor, which based on boron-embedded molecularly imprinted hybrid film (B-MIHF) modified carbon paste electrode (CPE), for enantioselective determination of S-ornidazole (S-ONZ). A boron-embedded conductive copolymer was firstly electro polymerized on carbon paste electrode (CPE), and then molecularly imprinted polysiloxanes (MIP) were hydrolyzed and condensed over the conductive copolymer layer via a sol-gel process. The as-prepared B-MIHF, comprised the advantages of boron-embedded conductive copolymer and molecularly imprinted polysiloxanes, could not only implement direct signal transformation between imprinted cavities and sensing elements, but show amazing selectivity to template S-ornidazole. Above all, the introduction of coordinate interaction formed between trisubstituted boron atoms embedded in B-MIHF matrix and nitrogen atoms of template endow the sensor with intensive enantioselectivity. Under optimum experiments conditions, the reduction peak currents of S-ONZ by differential pulse voltammetry were linear to S-ONZ concentrations in the range from 6.0 x 10(8) to 1.0 x 10(6) mol L-1 and 1.0 x 10(-6) to 3.5 x 10(4) mol L-1 with a detection limit of 1.1 x 10(-8) mol L-1. The B-MIHF-based sensor has been successfully applied for the determination of S-ONZ in pharmaceutical and biological samples with good precision (RSD 2.25-4.11%) and acceptable recoveries (96.00-108.00%). (C) 2017 Elsevier Ltd. All rights reserved.
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英文
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The detection of uranium(VI) with a synthesized ditopic bidentate ligand as probe by resonance light scattering
作者：
Xu, Li;Xiao, Xilin* ;Wang, Jiao;Peng, Pengcheng;Jiang, Min;...
期刊：
Journal of Radioanalytical and Nuclear Chemistry ,2017年312(1):59-66 ISSN：0236-5731
通讯作者：
Xiao, Xilin;Liao, Lifu
作者机构：
[Xu, Li; Xiao, XL; Liao, Lifu; Wang, Jiao; Xiao, Xilin; Jiang, Min; Peng, Pengcheng] Univ South China, Coll Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Xiao, XL; Liao, LF] U;Univ South China, Coll Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
关键词：
Uranium;Ditopic bidentate ligand;Resonance light scattering;Chelating reaction
摘要：
In order to detect the uranium(VI) in environmental water sample by means of establishing a novel resonance light scattering (RLS) method, we synthesized and characterized a ditopic bidentate ligand and studied its chelation with the uranyl(VI) ion. The chelating reaction can form supramolecular dimers and polymers, producing a strong RLS signal, which is used for quantitative analysis of uranium(VI) in aqueous solution. The linear range was 0.01–1.0 nmol mL−1 and the detection limit was 0.003 nmol mL−1 under the optimal conditions. The method has been used for the detection of uranium(VI) in environmental water samples and the recoveries were 98.0–101.0%. © 2017, Akadémiai Kiadó, Budapest, Hungary.
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英文
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新型双极双齿配体的合成及其与铀酰离子相互作用的共振光散射
作者：
肖锡林;许丽;王娇;廖力夫;蒋敏;...
期刊：
南华大学学报(自然科学版) ,2017年31(2):78-83 ISSN：1673-0062
作者机构：
南华大学 化学化工学院,湖南 衡阳,421001;[王娇; 许丽; 肖锡林; 蒋敏; 彭鹏程; 廖力夫] 南华大学
关键词：
双极双齿配体(IPTP);铀酰离子;共振光散射
摘要：
铀是重要的核燃料,也是发展核电的前提条件之一,而它具有重金属毒性和放射性,可对人类的生存和发展构成潜在的威胁.铀的检测对资源开发、健康维护和环境保护都非常重要.要高效地获得铀资源并防止铀污染,就必须开发高效无毒的铀配位剂.本文利用间苯二甲醛与吡咯发生的反应制备了一种新型的双极双齿配体isophthalaldehyde-tetrapyr-role(IPTP),并研究了其与铀酰离子进行配位作用的共振光散射光谱及机理,初步探讨了其用作铀配位剂开发分离分析新方法的可能性.
语种：
中文
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镍的双磺基Salophen配合物及其超分子聚合物的光谱性质研究
作者：
杨艳艳;徐灿辉;何云飞;廖力夫
期刊：
应用化工 ,2016年45(7):1382-1384,1388 ISSN：1671-3206
作者机构：
[杨艳艳; 徐灿辉; 何云飞; 廖力夫] 南华大学化学化工学院, 湖南, 衡阳, 421001
关键词：
镍;双磺基Salophen;配合物;超分子聚合物;光谱性质
摘要：
合成了双极四齿配体双磺基Salophen( BSS)和双极二齿配体双邻菲罗啉( BPA) 。将BSS与镍离子反应,制备了双核镍配合物( Ni-BSS-Ni) 。再将此双核镍配合物与BPA反应,制备了镍配位超分子聚合物溶液。研究了该双核镍配合物的红外光谱、紫外可见吸收光谱和荧光光谱性质。发现BSS与镍形成双核配合物后荧光显著增强,一定条件下,荧光强度与双核配合物的浓度存在定量关系。同时研究了形成的超分子聚合物的共振光散射性质。发现超分子聚合物的形成能使体系产生显著的共振光散射信号,一定条件下共振光散射强度也与超分子聚合物的浓度存在定量关系。结果表明,BSS可作为镍离子的荧光探针。利用镍与BSS和BPG形成超分子聚合物的反应,可对镍进行共振光散射检测。
语种：
中文
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Determination of trace uranium (VI) using its self-assembly with a tetradentate–monodentate ditopic ligand by resonance light scattering
作者：
Li, Shijun;Liao, Lifu* ;Wu, Rurong;Yang, Yanyan;Xu, Li
期刊：
International Journal of Environmental Analytical Chemistry ,2016年96(6):542-551 ISSN：0306-7319
通讯作者：
Liao, Lifu
作者机构：
[Wu, Rurong; Xu, Li; Yang, Yanyan; Li, Shijun; Liao, Lifu] Univ South China, Coll Chem & Chem Engn, Hengyang, Peoples R China.
通讯机构：
[Liao, Lifu] U;Univ South China, Coll Chem & Chem Engn, Hengyang, Peoples R China.
关键词：
Ditopic ligand;Resonance light scattering;Self-assembly;Supramolecular polymer;Uranium
摘要：
We describe here a resonance light scattering (RLS) method for uranium (VI) detection by using phosphorylethanol-amido-salophen (PAS) as optical probe. PAS is a tetradentate–monodentate ditopic ligand in which the tetradentate and monodentate ligands are salophen moiety and phosphate group, respectively. PAS can chelate uranyl with its salophen moiety. The chelated uranyl can connect phosphate group in another PAS through coordination reaction. This causes the self-assembly of PAS with uranyl to form a metallo-supramolecular polymer, resulting in a production of strong RLS signal. The RLS method was established based on the self-assemble. The RLS intensity is linearly related to the concentration of uranium (VI) in the 0.8–32 ng mL<sup>−</sup><sup>1</sup>range, with a detection limit of 0.24 ng mL<sup>−</sup><sup>1</sup>detection limit under optimal conditions. The method was successfully applied to determine uranium (VI) in environmental water samples with the recoveries between 97.1% and 102.6%. ©2016 Informa UK Limited, trading as Taylor & Francis Group.
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英文
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